ES379483A1 - Improvements in or relating to power-assisted steering mechanisms, particularly for motor vehicles - Google Patents
Improvements in or relating to power-assisted steering mechanisms, particularly for motor vehiclesInfo
- Publication number
- ES379483A1 ES379483A1 ES379483A ES379483A ES379483A1 ES 379483 A1 ES379483 A1 ES 379483A1 ES 379483 A ES379483 A ES 379483A ES 379483 A ES379483 A ES 379483A ES 379483 A1 ES379483 A1 ES 379483A1
- Authority
- ES
- Spain
- Prior art keywords
- pistons
- valve
- springs
- centring
- steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
In power-assisted vehicle steering mechanism comprising a steering spindle 2 and worm 3 connected for relative rotation through a torsion bar 1, and two valve pistons 15, 16 slidable in a valve body 4 on the worm 3 and engaged by pins 13, 14 carried by the spindle 2 so that the valve pistons are displaced in opposite directions upon relative rotation of the spindle and worm, pre-stressed centring springs 55, 56 are disposed between the valve pistons 15, 16 and the valve body 4 to supplement the centring effect of the torsion bar 1. Washers 51, 52 carried by adjustable set screws 47, 48 on a supported member 46 on the valve housing 4 limit expansion of the springs 55, 56 to prevent them influencing the valve pistons 15, 16 in their neutral position. Control edges 32, 35, 38, 39 of the valve pistons 15, 16 control communication between grooves 23, 24 connected to a steering motor and pressure fluid supply and return ports 19, 20. One of reaction pistons 40, 41 is subjected through a passage 42, 43 to the pressure at the groove 23 or 24 which communicates with the supply port 19 during a steering manoeuvre. In another embodiment, Fig. 3 (not shown), both centring springs are operative in both steering directions. In a further embodiment, Figs. 4, 5 (not shown), the centring springs are accommodated in hydraulic damping chambers which replace the reaction pistons. Each damping chamber is sealed by a diaphragm spring and vented through a throttle opening. Additional retaining springs coaxial with the centring springs ensure positive engagement between the valve pistons and pins.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691924032 DE1924032C3 (en) | 1969-05-10 | 1969-05-10 | Pressure medium control device for power steering, in particular for motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
ES379483A1 true ES379483A1 (en) | 1972-10-16 |
Family
ID=5733905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES379483A Expired ES379483A1 (en) | 1969-05-10 | 1970-05-09 | Improvements in or relating to power-assisted steering mechanisms, particularly for motor vehicles |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5028687B1 (en) |
DE (1) | DE1924032C3 (en) |
ES (1) | ES379483A1 (en) |
FR (1) | FR2047470A5 (en) |
GB (1) | GB1254673A (en) |
SE (1) | SE369883B (en) |
YU (1) | YU32576B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1534707A (en) * | 1974-12-21 | 1978-12-06 | Langen & Co | Servo-assisted steering gear for motor vehicles |
JPS612132Y2 (en) * | 1978-06-13 | 1986-01-23 | ||
DE3137366A1 (en) * | 1981-09-19 | 1983-04-14 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | "AUXILIARY STEERING" |
BR8407327A (en) * | 1983-07-23 | 1986-09-23 | Zahnradfabrik Friedrichshafen | PRESSURE MEDIUM CONTROL DEVICE FOR AUXILIARY POWER DIRECTIONS |
US4953416A (en) * | 1985-08-21 | 1990-09-04 | Atsugi Motor Parts Company Limited | Power steering valve with two spools of different size to compensate unbalanced cylinder |
DE8909142U1 (en) * | 1989-07-28 | 1989-10-05 | Fleischmann, Michael, 8621 Marktzeuln | Footmuff for strollers, sleds, etc. |
DE3925992C2 (en) * | 1989-08-05 | 1993-10-07 | Daimler Benz Ag | Hydraulic power control, in particular hydraulic power steering (power steering) for motor vehicles |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1238789B (en) * | 1965-07-06 | 1967-04-13 | Zahnradfabrik Friedrichshafen | Pressure medium control device in assisted steering systems, especially for motor vehicles |
-
1969
- 1969-05-10 DE DE19691924032 patent/DE1924032C3/en not_active Expired
-
1970
- 1970-04-19 YU YU109970A patent/YU32576B/en unknown
- 1970-05-08 GB GB2230870A patent/GB1254673A/en not_active Expired
- 1970-05-08 SE SE635670A patent/SE369883B/xx unknown
- 1970-05-08 FR FR7016753A patent/FR2047470A5/fr not_active Expired
- 1970-05-09 ES ES379483A patent/ES379483A1/en not_active Expired
- 1970-05-11 JP JP3938570A patent/JPS5028687B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1924032A1 (en) | 1970-11-12 |
DE1924032B2 (en) | 1980-07-03 |
DE1924032C3 (en) | 1981-06-04 |
FR2047470A5 (en) | 1971-03-12 |
YU32576B (en) | 1975-02-28 |
JPS5028687B1 (en) | 1975-09-17 |
SE369883B (en) | 1974-09-23 |
YU109970A (en) | 1974-08-31 |
GB1254673A (en) | 1971-11-24 |
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